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Hong Zhang
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El Sobrante, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Surface-based NMR measurement
Patent number
9,429,673
Issue date
Aug 30, 2016
Vista Clara Inc.
David O. Walsh
G01 - MEASURING TESTING
Information
Patent Grant
Surface to borehole electromagnetic surveying using metallic well c...
Patent number
9,069,097
Issue date
Jun 30, 2015
Schlumberger Technology Corporation
Hong Zhang
G01 - MEASURING TESTING
Information
Patent Grant
Electromagnetic logging between a cased borehole and surface
Patent number
9,035,657
Issue date
May 19, 2015
Schlumberger Technology Corporation
Hong Zhang
G01 - MEASURING TESTING
Information
Patent Grant
Induction coil impedance modeling using equivalent circuit parameters
Patent number
8,829,908
Issue date
Sep 9, 2014
Schlumberger Technology Corporation
Richard A. Roshtal
G01 - MEASURING TESTING
Information
Patent Grant
Measuring casing attenuation coefficient for electro-magnetics meas...
Patent number
8,704,523
Issue date
Apr 22, 2014
Schlumberger Technology Corporation
Cyrille Levesque
G01 - MEASURING TESTING
Information
Patent Grant
Attenuation of electromagnetic signals passing through conductive m...
Patent number
8,614,578
Issue date
Dec 24, 2013
Schlumberger Technology Corporation
Guozhong Gao
G01 - MEASURING TESTING
Information
Patent Grant
Single-well through casing induction logging tool
Patent number
8,456,166
Issue date
Jun 4, 2013
Schlumberger Technology Corporation
Luis Eduard DePavia
G01 - MEASURING TESTING
Information
Patent Grant
Induction coil impedance modeling using equivalent circuit parameters
Patent number
8,362,780
Issue date
Jan 29, 2013
Schlumberger Technology Corporation
Richard A. Rosthal
G01 - MEASURING TESTING
Information
Patent Grant
Correction factors for electromagnetic measurements made through co...
Patent number
8,332,191
Issue date
Dec 11, 2012
Schlumberger Technology Corporation
Richard A. Rosthal
G01 - MEASURING TESTING
Information
Patent Grant
Characterizing at least one property of a liner that lines a well
Patent number
8,326,539
Issue date
Dec 4, 2012
Schlumberger Technology Corporation
Frank Morrison
G01 - MEASURING TESTING
Information
Patent Grant
Detecting electrical current in a magnetic structure
Patent number
8,310,239
Issue date
Nov 13, 2012
Schlumberger Technology Corporation
Hong Zhang
G01 - MEASURING TESTING
Information
Patent Grant
Time synchronization in units at different locations
Patent number
8,181,057
Issue date
May 15, 2012
Schlumberger Technology Corporation
Edward Nichols
G01 - MEASURING TESTING
Information
Patent Grant
Determining correction factors representing effects of different po...
Patent number
7,795,872
Issue date
Sep 14, 2010
Schlumberger Technology Corporation
Brian Clark
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
DETECTING A STRUCTURE IN A WELL
Publication number
20170350233
Publication date
Dec 7, 2017
SCHLUMBERGER TECHNOLOGY CORPORATION
Hong Zhang
G01 - MEASURING TESTING
Information
Patent Application
SURFACE-BASED NMR MEASUREMENT
Publication number
20140084927
Publication date
Mar 27, 2014
VISTA CLARA INC.
DAVID O. WALSH
G01 - MEASURING TESTING
Information
Patent Application
Induction Coil Impedance Modeling Using Equivalent Circuit Parameters
Publication number
20130141103
Publication date
Jun 6, 2013
SCHLUMBERGER TECHNOLOGY CORPORATION
Richard A. Roshtal
G01 - MEASURING TESTING
Information
Patent Application
SURFACE TO BOREHOLE ELECTROMAGNETIC SURVEYING USING METALLIC WELL C...
Publication number
20110308789
Publication date
Dec 22, 2011
Hong Zhang
E21 - EARTH DRILLING MINING
Information
Patent Application
DETECTING A STRUCTURE IN A WELL
Publication number
20110204896
Publication date
Aug 25, 2011
Hong Zhang
E21 - EARTH DRILLING MINING
Information
Patent Application
CORRECTION FACTORS FOR ELECTROMAGNETIC MEASUREMENTS MADE THROUGH CO...
Publication number
20110012620
Publication date
Jan 20, 2011
Richard A. Rosthal
G01 - MEASURING TESTING
Information
Patent Application
ATTENUATION OF ELECTROMAGNETIC SIGNALS PASSING THROUGH CONDUCTIVE M...
Publication number
20100321023
Publication date
Dec 23, 2010
Guozhong Gao
G01 - MEASURING TESTING
Information
Patent Application
Determining Correction Factors Representing Effects of Different Po...
Publication number
20100308832
Publication date
Dec 9, 2010
Brian Clark
G01 - MEASURING TESTING
Information
Patent Application
ELECTROMAGNETIC LOGGING BETWEEN A CASED BOREHOLE AND SURFACE
Publication number
20100259268
Publication date
Oct 14, 2010
Hong Zhang
G01 - MEASURING TESTING
Information
Patent Application
Induction Coil Impedance Modeling using Equivalent Circuit Parameters
Publication number
20100231221
Publication date
Sep 16, 2010
Richard A. Rosthal
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SINGLE-WELL THROUGH CASING INDUCTION LOGGING TOOL
Publication number
20100134113
Publication date
Jun 3, 2010
Luis Eduard DePavia
G01 - MEASURING TESTING
Information
Patent Application
DETECTING ELECTRICAL CURRENT IN A MAGNETIC STRUCTURE
Publication number
20100134112
Publication date
Jun 3, 2010
Hong Zhang
G01 - MEASURING TESTING
Information
Patent Application
MEASURING CASING ATTENUATION COEFFICIENT FOR ELECTRO-MAGNETICS MEAS...
Publication number
20090302852
Publication date
Dec 10, 2009
Cyrille Levesque
G01 - MEASURING TESTING
Information
Patent Application
Characterizing at Least One Property of a Liner that Lines a Well
Publication number
20090281731
Publication date
Nov 12, 2009
SCHLUMBERGER TECHNOLOGY CORPORATION
Frank Morrison
G01 - MEASURING TESTING
Information
Patent Application
TIME SYNCHRONIZATION IN UNITS AT DIFFERENT LOCATIONS
Publication number
20090217074
Publication date
Aug 27, 2009
Edward Nichols
G01 - MEASURING TESTING
Information
Patent Application
Determining correction factors representing effects of different po...
Publication number
20090091328
Publication date
Apr 9, 2009
Brian Clark
G01 - MEASURING TESTING